Calibration method for a carbon nanotube field-effect transistor biosensor

被引：30
|
作者：
Abe, Masuhiro [1 ,2 ]
Murata, Katsuyuki [1 ,2 ]
Ataka, Tatsuaki [1 ,2 ]
Matsumoto, Kazuhiko [2 ,3 ,4 ]
机构：
[1] Olympus Corp, Future Creat Lab, Tokyo 1630914, Japan
[2] Olympus Corp, NEDO, Tokyo 1630914, Japan
[3] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan
[4] Osaka Univ, Inst Sci & Ind Res, Ibaraki 5670047, Japan
来源：
NANOTECHNOLOGY | 2008年 / 19卷 / 04期
关键词：
D O I：
10.1088/0957-4484/19/04/045505
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An easy calibration method based on the Langmuir adsorption theory is proposed for a carbon nanotube field-effect transistor (NTFET) biosensor. This method was applied to three NTFET biosensors that had approximately the same structure but exhibited different characteristics. After calibration, their experimentally determined characteristics exhibited a good agreement with the calibration curve. The reason why the observed characteristics of these NTFET biosensors differed among the devices was that the carbon nanotube (CNT) that formed the channel was not uniform. Although the controlled growth of a CNT is difficult, it is shown that an NTFET biosensor can be easy calibrated using the proposed calibration method, regardless of the CNT channel structures.
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页数：4
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